# Quebec SEAO #20183423

Construction of Toupin and Souligny 315-25 kV substations

**Posted:** November 13, 2026
**Respond By:** January 21, 2027
**Identifier:** 20183423
**NAICS:** 237130, 237990

Hydro-Québec is seeking construction services for two new 315-25 kV substations, Toupin and Souligny.
- **Government buyer:** Hydro-Québec; no sub-agency or specific office is identified.
- **Scope of work:** Pre-construction assistance during design and construction, covering architecture, civil engineering, electrical installation, underground lines, distribution, control, and telecommunications.
- **Requirements:** Bidders must be qualified by Hydro-Québec for substation construction in both civil engineering and electrical installation, hold current ISO 9001 certification, and meet applicable Québec business, licensing, authorization-to-contract, and declaration requirements.
- **Value and duration:** Estimated value is more than $100 million. The stated duration is 70, but the unit is unspecified; start and end dates are not provided.
- **OEMs and products:** No equipment manufacturers, product models, part numbers, or product quantities are identified.

### Description

The contract covers pre-construction assistance during project design and construction of two new 315-25 kV substations. Work includes architecture, civil engineering, electrical installation, underground lines, distribution, control, and telecommunications. Only suppliers qualified by Hydro-Québec in the substation construction category for both civil engineering and electrical installation may bid. Concrete-encased underground conduit work must be performed by a Hydro-Québec-qualified supplier in the specified underground networks category.

[View original listing](https://seao.gouv.qc.ca/avis-resultat-recherche/consulter?ItemId=8e4d4e9d-fb5b-4249-9bf7-a9c686333ef8)